What is INP by browser search
INP by browser search shows how Interaction to Next Paint (INP) is affected depending on whether the user used their browser’s in-page search function (typically Ctrl+F or ⌘+F) during the session.
This breakdown helps uncover whether search-driven behavior is impacting the responsiveness of key interactions — especially in content-heavy pages or documents where users are scanning for specific information.
Healthy INP by browser search sample
Should you worry
In a healthy scenario:
Both searchers and non-searchers show fast, green INP values
Interactive elements respond smoothly regardless of whether the user is hunting for content
The presence of the search overlay doesn’t interfere with layout or cause event delay
This suggests your page is:
Structurally optimized and easy to navigate visually
Avoiding JavaScript-triggered reflows or repaint bottlenecks when users search
Not relying on complex focus logic or dynamic DOM manipulation in response to user scrolling or text input
Unhealthy INP by browser search sample
If INP is worse for searchers, it might point to:
Users activating search before the page is fully interactive, triggering interaction before hydration or JS readiness
Dynamic content (e.g., accordions, collapsibles) being programmatically expanded in response to found matches, causing delay
Pages where long scroll regions are paired with event-heavy DOM trees, adding friction during interaction post-search
If non-search users have worse INP, the issue may be broader — poor input handling, long tasks, or sluggish default interactions that hit everyone, regardless of search usage.
Resolving unhealthy INP by browser search
Go-to action plan to resolve an unhealthy INP by browser search:
Ask Uxi to analyze your INP by browser search values and suggest improvements.
Use Filters to isolate poor INP values in sessions where Ctrl+F was used.
Simulate INP of the suspected breakdown to see if fixing it will resolve the INP by browser search. If yes, this is where the resolution focus should be.
Use an automated INP optimization tool like INProve to improve your INP by browser search values.
Once you’ve improved INP, set an alert to be the first to know if it starts worsening again.
Try it yourself
Discover how your website performs with real user data.